<?php
$jump = 'http://www.imooc.com';
$content = "慕课网";
echo '<a href = ' . $jump . '>' . $content . '</a>';
echo '<br>';
echo '<span style="color: rgb(' . mt_rand( 0, 10 ) . ',' . mt_rand( 0, 255 ) . ',' . mt_rand( 0, 100 ) . ');font-size:300px">' . mt_rand( 100, 500 ) . '</span>';
/*流程控制*/